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Questions tagged [failovercluster]

A failover cluster is a group of servers that work together to maintain high availability of applications and services

A failover cluster is a group of independent computers that work together to increase the availability and scalability of clustered roles
The clustered servers (called nodes) are connected by physical cables and by software. If one or more of the cluster nodes fail, other nodes begin to provide service (a process known as failover). In addition, the clustered roles are proactively monitored to verify that they are working properly. If they are not working, they are restarted or moved to another node.

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How to run validate cluster test without taking cluster offline?

I'm trying to run "Validate a Cluster" wizard but when I selected Run all test it gave a warning that running storage test will result in role failure. What test can I run in Run only tests I select that will not bring any anything offline or cause…
Vladimir Oselsky
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Split a Scope Linux<=>Windows

Is it possible to create a DHCP Failover Cluster between a Linux(Ubuntu) based server and a Windows Server 2012R2 based server. My idea was to include a new data into the dhcp.conf data to exclude a specific part of the area. E.g. a company has a…
mushr00mer1990
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Avoiding a Single Point of Failure with link aggregation

I have a requirement for a system with no Single Point of Failure. The client have offered two Ethernet cables per server. Each of the servers will connect into their network, however I want to set-up a separate network exclusively for PostgreSQL…
tommed
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What happens when Core Cluster Group is failed over to another node? Will it take the whole cluster down? Single point of failure?

http://bit.ly/1lKJFIa "Cluster group" fail-over will cause cluster go offline. Really? Single point of failure? Am I missing something? What happens when Core Cluster resources (Cluster Group) are failed over from one node to another? Will it take…
Bamboo Shoot
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Extract Summary property from VMM with PowerShell

I have a Windows Server 2008R2 running SCVMM 2012. I successfully removed a virtual machine, according to the Jobs output from VMM, as seen in this screenshot. As you can see, the VM has a red dot indicating a failure. VMM doesn't really mention…
slybloty
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How can I quickly relocate an entire virtual machine to a new location?

We are using Hyper-V in a clustered Server 2008 R2 environment with 3 identical hosts. Virtual machines are stored on cluster shared volumes (CSV's) on a SAN backend connected via iSCSI. What is the quickest, safest and most efficient way of moving…
Kez
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Cluster Shared Volumes offlining under excessive use

I am trying to understand (and ideally fix) a particularly annoying phenomenon I've noticed with Failover Clustering and Cluster Shared Volumes in conjunction with Hyper-V. It appears that under high load, when the CSV backend storage is responding…
the-wabbit
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Windows Server 2008 R2 cluster, MSDTC issue

We recently installed MS Windows Server 2008 R2 EE on two physical IBM System x3550 M4 server and this cluster hosts Biztalk resources on it. MSDTC was configured prior to Biztalk resource were added and after Windows Cluster was setup. Cluster…
Volodymyr Molodets
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Starting a service in a corosync pacemaker failover cluster

first off all my setup 2 VM running Fedora 19 in a pacemaker/corosync failover cluster, they have 1 cluster IP 1 VM running Fedora 19 monitoring both VM's with nagios Right now nagios is running on both nodes all the time but I want that nagios is…
chosen
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Change network used by cluster traffic types with powershell

I was reading this technet blog post about Windows HA cluster traffic types. It explains how to change the metrics of cluster traffic types with the cmdlets, but for settings like “Allow cluster network communication on this network” it refers you…
red888
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failover cluster file replication

I have a Windows 2008 R2 failover cluster server. I am going to move one of our window services onto this new server. The service writes some trace information to a log file on the local harddrive. This will become a problem when it is moved to…
user156144
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where to put core services in two-node cluster

I'm currently configuring two-node HA cluster based on CentOS with DRBD. Most services are packed in virtual machines with migration available. I have not made decision where to put some core services as: dhcp, ldap, dns - which are critical for all…
Veniamin
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Windows failover cluster - virtual node with multiple Client Access Names

I recently encountered a customer environment in which they had failover cluster where one of the virtual nodes had more than one 'Client Access Name' (i.e. more than one IP address and DNS name for the single virtual node). Long story short we had…
mclaassen
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Windows Cluster - Moving a node to different network

I have a 3 node SQL always on cluster running , is it possible to move a node to different network(subnet) without evicting & creating the node again.
Priyan R
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Two SQL Failover Clusters in two-node failover servers

I need 2 SQL Failover clusters: Core Database Cluster: this contains all of my core application databases Analytic Database Cluster: this contains my web analytic database Now, I only have 2 physical servers (DB1 and DB2) connected to a SAN. How…
ronanray
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